(S,Z)-3-((E)-2-((1R,3AS,7aR)-1-((2R,5R,E)-6-hydroxy-5,6-dimethylhept-3-en-2-yl)-7a-methylhexahydro-1H-inden-4(2H)-ylidene)ethylidene)-4-methylenecyclohexanol CAS 90191-28-9

Purity 97%+In StockPharmaceutical Standards
CAS No.90191-28-9
Molecular FormulaC28H44O2
Molecular Weight412.65 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(S,Z)-3-((E)-2-((1R,3AS,7aR)-1-((2R,5R,E)-6-hydroxy-5,6-dimethylhept-3-en-2-yl)-7a-methylhexahydro-1H-inden-4(2H)-ylidene)ethylidene)-4-methylenecyclohexanol CAS 90191-28-9 chemical structure

Description

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

(S,Z)-3-((E)-2-((1R,3AS,7aR)-1-((2R,5R,E)-6-hydroxy-5,6-dimethylhept-3-en-2-yl)-7a-methylhexahydro-1H-inden-4(2H)-ylidene)ethylidene)-4-methylenecyclohexanol (CAS 90191-28-9) is a high-purity analytical reference standard with the molecular formula C28H44O2 and a molecular weight of 412.65 g/mol.

Structurally, (S,Z)-3-((E)-2-((1R,3AS,7aR)-1-((2R,5R,E)-6-hydroxy-5,6-dimethylhept-3-en-2-yl)-7a-methylhexahydro-1H-inden-4(2H)-ylidene)ethylidene)-4-methylenecyclohexanol (C28H44O2) contains a steroid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 412.65 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC28H44O2
Molecular Weight412.65 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at room temperature, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1982

Recommended Standards

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